procmeminfo: use getline() instead of fgets() everywhere

Bug: 111694435
Test: libmeminfo_test 1 --gtest_filter=TestProcMemInfo.*

Change-Id: Idfc797aa65f45e0152765605c14622e2110dfdc1
Signed-off-by: Sandeep Patil <sspatil@google.com>
1 file changed